List of top Questions asked in UP CPMT- 2011

For which of the following voltages will the wavelengh of emitted $X$-rays will be minimum?

According to Bohr's model, relation between the radius of an orbit and principal quantum number is

What will be the effect of using white light in place of sodium light in the Young's double slit experiment?

The work done in shifting a particle of mass $m$ from the centre of the earth to the surface of the earth is (Where $M$ is the mass of the earth and $R$ is the radius of the earth)

A cylindrical tube, open at both ends, has a fundamental frequency $f$ in air. The tube is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is

A thermally insulated vessel containing a gas whose molar mass is $M$ and ratio of specific heat $\gamma$ moves with velocity $v$. What is the change in temperature of the gas if the vessel is suddenly stopped?